Characterization of Wastewater from Ship’s Hull Cleaning by Hyrdoblasting

Title
Characterization of Wastewater from Ship’s Hull Cleaning by Hyrdoblasting
Author(s)
김문구; Soon Zhi; 정지현; 강정훈; 윤철호; 장민철
KIOST Author(s)
Kim, Moonkoo(김문구)Soon, Zhi Yang(Soon, Zhi Yang)Jung, Jee Hyun(정지현)Kang, Jung Hoon(강정훈)
Publication Year
2019-11-04
Abstract
During periodic haul-out maintenance of ship, high-pressure water is sprayed to clear off foulants and antifouling paint on the ship’s hull. The sprayed water can be contaminated with particles and active substances released from the paints, and then introduced directly into the adjacent marine environment, if no further treatment of the waste was implemented. The particles and active substances can be sources of hazards to marine organisms in the environment. Wastewaters were collected for analyses of booster biocides and metals during ships’ hull cleanings. Total suspended solid and particle size distribution in the wastewater were also characterized. Copper and zinc were the most abundant metals in the wastewater, as were in the original composition of antifouling paint, exceeding local regulatory discharge standards and NOEC or LC50 values of almost all test species reported in the ECOTOX database. Zinc pyrithione and copper pyrithione were the most abundant booster biocides, exceeding the LC50s of 35
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22036
Bibliographic Citation
SETAC North America 40th Annual Meeting, pp.300, 2019
Publisher
Society of Environmental Toxicology and Chemistry
Type
Conference
Language
English
Publisher
Society of Environmental Toxicology and Chemistry
Related Researcher
Research Interests

Biological oceanography,Zooplankton ecology,Introduction and dispersion of foreign species,생물해양학,동물플랑크톤 생리,생태,외래종 유입,확산

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